345069 has 12 divisors (see below), whose sum is σ = 520416. Its totient is φ = 219912.

The previous prime is 345067. The next prime is 345089. The reversal of 345069 is 960543.

It is a happy number.

345069 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 345069 - 2¹ = 345067 is a prime.

It is a super-2 number, since 2×345069² = 238145229522, which contains 22 as substring.

345069 is strictly pandigital in base 7.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 627 + ... + 1040.

It is an arithmetic number, because the mean of its divisors is an integer number (43368).

2³⁴⁵⁰⁶⁹ is an apocalyptic number.

It is an amenable number.

345069 is a deficient number, since it is larger than the sum of its proper divisors (175347).

345069 is a wasteful number, since it uses less digits than its factorization.

345069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1696 (or 1693 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 345069 is about 587.4257399876. The cubic root of 345069 is about 70.1404662427.

The spelling of 345069 in words is "three hundred forty-five thousand, sixty-nine".